Lubricating apparatus



Patented Apr. 26, 1927.

tegens WILLIAM' R'. n. NoH'sE, of new Y'onx, N. Y.

LUBRICTING APPARATUS.-

Application' inea october 23, 192eY serial No; 143,650

rthis invention relates to lubricating apparatus, an object of theinvention being to' provide improved lubricating apparatus functioningas a grease cup, which may be entirely manual in its operation orsemi-automatic. and which has many advantages, fome of which may beenumerated as follows:

rlhe device is simple in construction, easily assembled and mosteilicient in the performance of its functions;

All parts when once assen'ihled remain in their proper relationship sothat there is no danger of lot parts;

The device is positive in action, assuring thorough lubrication, andeconomical in the use oi" lubricant;

lt can be easily reliilenished and isdirt and dust proof;

The device may be easily manipulated and also a safeguard against hotbearing surfacci;

'The device is n at and attractivein appearance and strong and durablein use. c

"With these and other objects in vien'gthe invention consists in certainnovel features of construction and combinations and arrangements ofparts which ill be more 'fully hereinafter described and pointe-d out:io in the claims. i

In the accompanying drawings- Figure l ia a top plan View, partly brokenaway and in section, illustrating my improved lubricating device;

Figure 2 a view in vertical or longilndinal section;

Figure f3 is a view in transverse section,

the section being taken at point between` the bonnet and the cap of thedevice; l

Figure 4 is a perspective view of the retaining ring,

Figure 5 is a View in longitudinal section, illustrating a modification;

Figure G is a fragmentary View in section, illustrating anothermodification.

1 represents a cup or receptacle of any desired size adapted to receivelubricant and having a threaded nipple 2 at its lower end for attachmentto the parts supporting the same. This nipple 2 is hollow and consti-`tutes an outlet for the lubricant, and the upper end of the cup 1 isexternally screw threaded, as shown at 3, forthe reception ofaninternally screw threaded cap 4 con-r stituting a removable closurefor the upper end of the cup. i The upper face of the cap 4 is depressedo r recessed, as shown at 5, so as to accommodate and seat the base ordisk 6 of my improved bonnet 7. This bonnet 7 is of general cylindricalform, the lower portion', at

least, of which is internally screw threaded, as shownV at 8, tomeshwith an externally screw threaded plunger rod 9, the lattercarryinga plungerl() located in and fitting the cup 1. Thisplunger 10 may beprovided wit-h any ordinary means to render arsnug fit in the cupV so astoprevent discharge of the lubricant aroundthe plunger.

lhe upper face of the cap 4 is somewhatV enlarged at the center; or, inother words, upwardly offsetand of circular form, con? stituting acircular enlargement or bearing 11 which fits in a correspondinglyshaped recess 12 inthe bottom of disk 6. vThis en-v larged centralportion 11 has an openingl therein, which is of circular form but lessthan acircle, having aflat or straight wall 14,A and the plunger rod 9is flattened on one side, as clearly shown, so as to move freely withinthe opening V13 but held by theflat wall Maga-.inst turning movement.

The' base, or disk 6 of the bonnet 7 and thewallof the cap 4 a'reformedwith regis'- tering grooves 15 and 16, in whicha split retaining ring 17is sprung so as to hold the parts in coupled engagement but permita freeturning movement of the bonnet. The bonnet is preferably'formed withlongitudinalslots=18 through which ther` plunger rod 9 may be observedso as to disclose just h ow m-uclr lubricant there is in the apparatus,and radial webs 19 are provided on the' bonnet to facilitate` a grippingthereof and to facilitate the turning movement of the bonnet.

The operation isas follows:

Then itis desired to fill the cup or receptacle 1, the cap 4 isunscrewed and carries with it the bonnet and the plunger. Lubricant isthen placed in the cup and the cap returned to its closed position. Vhena turning movement in one direction is imparted to the bonnet the screwthreaded enga'gement of the same and the plunger `Qrivillcauseftheplunger to move downwardly and extrude the lubricant. f f

In the modilication illustrated inA Figure I disclose a form or'plungerwhich is semiv 'receptaclesv a f removable cap `on the,recepautomatic in its operation and which may be substituted for theplunger illustrated.

. inl Figure 2; ln this form oi' my invention the plunger rod 9 lof theform above describedr is ymade with longitudinalboref 2l extending fupwardly from'. its low er endv the desired distance and laccommodatingan ein largement 29; on a rod 23.

, The lower end oi" the bore 2l is preferably restricted after theenlargementQ). Ais in the biore, as Aindicated rat 24,150 prevent theaccidental removal o'l the rod.

v The lower end of the plunger rod 2O has a disk 25 thereon, and 'aplunger 2Gisse-r cur'edto'the loiver end'ot'ro'dof A heli-. 'callycoiled spring 27 islocated'around the rod* 23' and interposed betweenthe' disk 25 and the plunger 26, the latter being recessed in yits uppertace'to sea-t and house the spring when the latteris vfully compressed,asindi'- cated by dotted lines f in Figure 5. llNith this `form 1 ofplunger yand its cooperatingL parts the spring-Q7 will kof coursefunction to extrude lubricant automatically as it may I beneededi, andit 1s only necessary tomove 'the plunger rod trointiine Ato timel morderlto put the rspring under pressure.

` In'Figure I lllustlrate a inodiliedfmeansr t ot the bonnet In lorcoupling the baseer diskl 7 to the cap 4 of the lubricant cup l. thisorm of the invention the Wall of the recess accommodating the disk t3 isscrewthreaded, as shown at 27, to receive a removable ring 28 whichoverlaps an edge ot the disk, and this ring may have Wrench receivingrecesses 29 therein.

It is of course to be understood that many other modifications may bemade` in the specie construction and detail parts vand hence I do notlimit myself to the exact construction but consider inyselll at libertyto make such changes and alterations as fairly come Within the spiritand scope oi the appended claims.

I claim:

l. A lubricating apparatus, including a receptacle, a removable cap onthe receptacle, a screw threaded plunger rod mounted to move through thecap and held by the cap against rotary movement, a plunger connected tothe rod Withinfthey cup, and an internally screw threaded bonnetengaging the plunger rod and coupled to turn on the cap.

2.*A lubricating apparatus, including a tacle, a screw threaded yplungerrod mountedy y `to move through the cap and held by the 'cap againstyrotary movement, a plunger receptacle, a removable cap on the receptacle, a 'screw threaded plunger rod mounted tomove kthroughrthe capkand held by the cap against rotary movement, aV plunger connected vrtothefro'd Within the cup, said cap having a depression or-recess in itsupper or outer iace,fa bonnet havinginternal screw threads engaging thethreads of the plunger, a disk on thebonnet litting the recess'of thecap, yand means coupling the diskr and the cap but permitting turningmove-y ment ot' the disk inthe recess ol the cap,

said means coin rising a salitrinolittino the opposing grooves in thedisk and cap.

4l. l lubricating apparatus, including a receptacle, a rein'fjiwrble''capy on the receptacle, a screw tl readed plunger rodnxounted tovmovethrough the cap yand held by the cap against i rotary movement, ar fplunger connected to the rod within the cup, an internally screwthreaded bonnet engaging the plunger rod and coupled to turn on the cap,said bonnet having an opening therein through which the plunger rod isobservable, and means on the bonnet :for Yfacilitating turning the same.

5. A lubricating device or the el'iaracter described, including areceptacle, a cap on the` receplacle, a screw threaded rod having a llat,tace located .in an opening ot the coz-- responding shape in the capand held against turning movement, a bonnet coupled to the cap andhaving'internal screw threads` engaging the threads olf the plunger rod.said plunger rod having a longitudinal bore, a plunger, a rod connectedto the plunger and movable in said bore, and a spring interposed betweenthe plunger and the first mentioned rod.

WTLLIAM R. E. NOHSE.

